Home / 1,325,299.61-1,987,949.11-378,670.34

Finding the Fourth Proportional to 1,325,299.61, 1,987,949.11 and 378,670.34

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Solution

The fourth proportional to 1,325,299.61, 1,987,949.11 and 378,670.34 is: 568,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,299.61 : 1,987,949.11 = 378,670.34 : x
  2. Step 2: Convert to fraction form
    1,325,299.61/1,987,949.11 = 378,670.34/x
  3. Step 3: Cross multiply
    1,325,299.61x = 1,987,949.11 × 378,670.34
  4. Step 4: Simplify right side
    1,325,299.61x = 752,777,363,493.05
  5. Step 5: Solve for x
    x = 752,777,363,493.05/1,325,299.61
  6. Step 6: Final answer
    x = 568,005.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.